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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">hydrophysics</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и прикладная гидрофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Applied Hydrophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6673</issn><issn pub-type="epub">2782-5221</issn><publisher><publisher-name>St. Petersburg Research Center of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.59887/fpg/4eh4-83zr-r1fm</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-691</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФУНДАМЕНТАЛЬНЫЕ ВОПРОСЫ ГИДРОФИЗИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FUNDAMENTAL ISSUES OF HYDROPHYSICS</subject></subj-group></article-categories><title-group><article-title>Аналитическое решение лучевых уравнений Гамильтона для волн Россби на стационарных сдвиговых потоках</article-title><trans-title-group xml:lang="en"><trans-title>Analytical Solution of the Ray Equations of Hamilton for Rossby Waves on Stationary Shear Flows</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гневышев</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Gnevyshev</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117997, Нахимовский пр., д. 36, г. Москва</p></bio><bio xml:lang="en"><p>117997, Nahimovsky Pr., 36, Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белоненко</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belonenko</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199034, Университетская наб., 7–9, г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>199034, 7–9, Universitetskaya Emb., St. Petersburg</p></bio><email xlink:type="simple">btvlisab@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт океанологии им. П.П. Ширшова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Shirshov Institute of Oceanology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>25</day><month>06</month><year>2022</year></pub-date><volume>15</volume><issue>2</issue><fpage>8</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гневышев В.Г., Белоненко Т.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Гневышев В.Г., Белоненко Т.В.</copyright-holder><copyright-holder xml:lang="en">Gnevyshev V.G., Belonenko T.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://hydrophysics.spbrc.ru/jour/article/view/691">https://hydrophysics.spbrc.ru/jour/article/view/691</self-uri><abstract><p>Рассматривается асимптотическое поведение волн Россби, взаимодействующих со сдвиговым стационарным течением. Показано, что в этих задачах существует качественное отличие задач для зонального и незонального фонового потока. Если для зонального потока возникает только один критический слой, то для незонального может существовать несколько критических слоев. Установлено, что проинтегрированные лучевые уравнения Гамильтона оказываются равносильны асимптотикам решения задачи Коши. Получены явные аналитические решения для волновых треков волн Россби, как функции времени и начальных параметров волнового возмущения, а также величины сдвига и угла наклона потока к зональному направлению. На примере волн Россби на сдвиговом потоке аналитически проинтегрированы лучевые уравнения Гамильтона. Полученные явные выражения позволяют рассчитывать в реальном времени треки волн Россби для любого начального направления волны и для любого угла наклона сдвигового течения. Показано, что эти треки для незонального потока качественно носят сильно анизотропный характер.</p></abstract><trans-abstract xml:lang="en"><p>The asymptotic behavior of Rossby waves in the ocean interacting with a shear stationary flow is considered. It is shown that there is a qualitative difference between the problems for the zonal and non-zonal background flow. Whereas only one critical layer arises for a zonal flow, then several critical layers can exist for a non-zonal flow. It is established that the integrated ray equations of Hamilton are equivalent to the asymptotic behavior of the Cauchy problem solution. Explicit analytical solutions are obtained for the tracks of Rossby waves as a function of time and initial parameters of the wave disturbance, as well as the magnitude of the shear and angle of inclination of the flow to the zonal direction. The ray equations of Hamilton are analytically integrated for Rossby waves on a shear flow. The obtained explicit expressions make it possible to calculate in real-time the Rossby wave tracks for any initial wave direction and any shear current inclination angle. It is shown qualitatively that these tracks for a non-zonal flow are strongly anisotropic.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>волны Россби</kwd><kwd>сдвиговое течение</kwd><kwd>зональное</kwd><kwd>незональное</kwd><kwd>эрмитов оператор</kwd><kwd>не эрмитов</kwd><kwd>лучевые уравнения Гамильтона</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Rossby waves</kwd><kwd>shear flow</kwd><kwd>zonal</kwd><kwd>non-zonal</kwd><kwd>Hermitian operators</kwd><kwd>Non-Hermitian operators</kwd><kwd>ray equations of Hamilton</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">The publication was funded by the Russian Science Foundation, project No 22-27-00004. The work of V.G.G. was carried out within the State Task for the Shirshov Institute of Oceanology RAS, project No 0128-2021-0003</funding-statement><funding-statement xml:lang="en">The publication was funded by the Russian Science Foundation, project No 22-27-00004. The work of V.G.G. was carried out within the State Task for the Shirshov Institute of Oceanology RAS, project No 0128-2021-0003.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Rossby C.G. et al. Relation between variations in the zonal circulation of the atmosphere and the displacements of the semi-permanent centers of action // Journal of Marine Research. 1939. Vol. 2. P. 38–55. doi:10.1357/002224039806649023</mixed-citation><mixed-citation xml:lang="en">Rossby C.G. et al. 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